Modelling of Corona at a High-Voltage Conductor Under Double Exponential and Oscillatory Impulses

Rickard, D. A., Waters, Ronald and Harid, N. 1996. Modelling of Corona at a High-Voltage Conductor Under Double Exponential and Oscillatory Impulses. IEE Proceedings - Science, Measurement and Technology 143 (5) , pp. 277-284. 10.1049/ip-smt:19960517

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Abstract

An alternating-current corona model is adapted to allow its application to fast transient overvoltages in coaxial geometries. An initial study of data for positive and negative lightning and switching impulses shows good agreement between the model and experiment. Application is then made to a negative corona under oscillatory impulses with frequencies of 33 and 125 kHz. The model is used to aid interpretation of the complex experimental results, and gain an insight into the underlying physical phenomena. A semiquantitative quantitative adaptation is then made to successfully simulate experimental data. The model is shown to be applicable to all voltage types including direct, alternating and impulse voltages

Item Type:	Article
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Publisher:	The Institution of Electrical Engineers
ISSN:	13502344
Last Modified:	24 Nov 2017 11:27
URI:	https://orca.cardiff.ac.uk/id/eprint/107031

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